Answer to Question #237919 in General Chemistry for gwen

Question

1.)A 100 mL solution contains 4.7g MgCl2 (MM = 94 g/mol). The density of the solution is 1.03 g/mL. Express the concentration in (a) % by mass or mass %; (b) M

2.)How many grams of glycerine, C3H5(OH) (MM = 92 g/mol) is mixed with 36 g H2O to make a solution where the mol fraction of glycerine is 0.2?

3.)How many mL of ethyl alcohol can be distilled from 1.5 L of a 90 proof wine?

4.)58.8 g H2SO4 (MM = 98 g/mol) is added to H2O to make a 500 mL solution. If the density of the solution is 1.2 g/mL, calculate the (a) M; (b) m.

5.)How many grams of CaCL2 (MM = 110 g/mol) should be dissolved in H2O to prepare a liter of 1.2M solution?

6.)How many mL of 6M HCl solution should be diluted to make 200 mL of a 1.5M solution?

7.)To what volume must 30 mL of a 2.5M NaOH solution be diluted to make a 0.4M solution?

Answer 1

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